主席树 其实暴力二维树状还更快
#include<bits/stdc++.h> using namespace std; typedef long long ll; const int MAXN = 2005; int N,M,K,Q; struct Node{ int x,y,w; Node(int a=0, int b=0, int c=0):x(a),y(b),w(c){} bool operator < (Node T) { if(x != T.x) return x < T.x; else return y < T.y; } }; struct Ask{ int x1,y1,x2,y2; int ty; }Do[1000005]; ll ans[1000005]; int vis[MAXN]; vector<Node> gar[MAXN]; vector<int> has[MAXN]; int root[MAXN]; struct Pode{ int ls,rs; ll sum; }tree[MAXN*30]; int tot; int Update(int pos,int num,int l,int r,int pre){ int rt = ++tot; tree[rt] = tree[pre]; tree[rt].sum += num; if(l == r) return rt; int m = (l+r)>>1; if(pos <= m) tree[rt].ls = Update(pos,num,l,m,tree[pre].ls); else tree[rt].rs = Update(pos,num,m+1,r,tree[pre].rs); return rt; } ll Query(int L,int R,int l,int r,int rt) { if(!rt) return 0; if(L <= l && r <= R) return tree[rt].sum; int m = (l+r) >>1; ll ans = 0; if(L <= m) ans += Query(L,R,l,m,tree[rt].ls); if(R > m) ans += Query(L,R,m+1,r,tree[rt].rs); return ans; } int main(){ while(~scanf("%d %d %d",&N,&M,&K)) { memset(ans,0,sizeof(ans)); for(int i = 1; i <= K; ++i) gar[i].clear(), has[i].clear(); for(int i = 1; i <= K; ++i) { vis[i] = 1; int a; scanf("%d",&a); for(int j = 0; j < a; ++j) { int b,c,d; scanf("%d %d %d",&b,&c,&d); gar[i].push_back(Node(b,c,d)); } sort(gar[i].begin(), gar[i].end()); } scanf("%d",&Q); for(int i = 1; i <= Q; ++i) { char a[10]; scanf("%s",a); if(a[0] == 'S') { int b; scanf("%d",&b); Do[i].ty = 2; vis[b] ^= 1; }else { scanf("%d %d %d %d",&Do[i].x1,&Do[i].y1,&Do[i].x2,&Do[i].y2); Do[i].ty = 1; for(int j = 1; j <= K; ++j) { if(vis[j]) { has[j].push_back(i); } } } } tree[0].ls = tree[0].rs = tree[0].sum = 0; for(int i = 1; i <= K; ++i) { tot = 0; root[0] = 0; for(int j = 0; j < (int)gar[i].size(); ++j) { root[j+1] = Update(gar[i][j].y, gar[i][j].w, 1,M,root[j]); } for(int j = 0; j < (int)has[i].size(); ++j) { int tt = has[i][j]; int x1 = Do[tt].x1; int y1 = Do[tt].y1; int x2 = Do[tt].x2; int y2 = Do[tt].y2; Node t1 = Node(x2,M+1); int pos = lower_bound(gar[i].begin(), gar[i].end(), t1)-gar[i].begin(); if(pos) ans[tt] += Query(y1,y2,1,M,root[pos]); Node t2 = Node(x1,0); int _pos = lower_bound(gar[i].begin(), gar[i].end(), t2)-gar[i].begin(); if(_pos) ans[tt] -= Query(y1,y2,1,M,root[_pos]); } } for(int i = 1; i <= Q; ++i) { if(Do[i].ty == 1) printf("%lld ",ans[i]); } } return 0; }